Pillow



FIG. 1 is a top view;

FIG. 2 is a right side elevation;

FIG. 3 is a left side elevation;

FIG. 4 is a section taken along line 4--4 of FIG. 1;

FIG. 5 is a rear elevation;

FIG. 6 is a front elevation; and,

FIG. 7 is a bottom view.

The broken lines are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a pillow, as shown and described. 